package com.liuda066.forumssm.interceptor;

import com.liuda066.forumssm.config.AppConfig;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 * @author : niu niu
 * @version : 1.0.0
 * @date : 2023/9/4 13:56
 */
@Component
@Slf4j
public class LoginInterceptor implements HandlerInterceptor {
    @Value("${forum.login.url}")
    private String defaultURL;

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        HttpSession session = request.getSession(false);
        if (session != null && session.getAttribute(AppConfig.USER_SESSION_KEY)!=null ){
            return true;
        }

        if (!defaultURL.startsWith("/")){
            defaultURL = "/"+defaultURL;
        }
        response.sendRedirect(defaultURL);

        return false;
    }
}
